TM 5-3825-226-24
PISTONS
DISASSEMBLE PISTONS
Tools Needed
A
5F9059
Ring Expander
1
start by:
a)
remove pistons
1. Remove the rings from the piston with tool (A).
2. Remove snap ring (2), pin (1) and connecting rod (3)
from the piston.
ASSEMBLE PISTONS
Tools Needed
A
B
8S2304
Piston Ring Groove Cleaner
1
5F9059
Ring Expander
1
1. Install connecting rod (1) in the piston with boss (2)
on the same side as the hole (crater) in the top of the
piston.
2. Install piston pin (3) and snap ring (4).
3. When old pistons are to be used, clean the piston
grooves with tool (A).
4. Install the spring for the oil ring. Install the oil ring
with tool (B). The gap in the ring must be approximately
180° from the oil ring spring connections.
5. Install the compression ring with tool (B). The side of
the ring that has the identification "TOP" must be toward
the top of the piston. The gaps in the rings must be
approximately 120° apart.
NOTE
Compression rings that do not have
identification must be installed with
the edge that has bevel toward the
top of the piston.
end by:
a)
install pistons
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